Laule, G. E. 1992. Use of positive behavioral techniques in primates for husbandry and enrichment. The Newsletter 3(4), 1-2.
Primates, as a group, offer great opportunities for positive reinforcement work.
Meder, A. 1992. Effects of the environment on the behaviour of lowland gorillas in zoos. Primate Report 32, 167-183.
The purpose of this study was to observe as many gorilla groups as possible and to compare their behaviour in different exhibits, social structures and visitor situation. Gorillas were studied in 15 zoos, they lived...
Poenisch, T. 1992. Bedding for enrichment. The Newsletter 4(1), 1.
When forage materials [chicken scratch] are provided, bedding materials, such as straw or shredded newspaper, along with woodchips increase the amount of time the captive chimpanzee spends in search of forage materials. ... Whether this...
Pruetz, J. D., Bloomsmith, M. A. 1992. Comparing two manipulable objects as enrichment for captive chimpanzees. Animal Welfare 1(2), 127-137.
This study compared the effectiveness of kraft wrapping paper and rubber to as enrichment for 22 chimpanzees group-housed in conventional indoor/outdoor runs. Objects were tested separately during 67 hours of data collection using a group...
Reinhardt, V. 1992. Are rhesus macaques really so aggressive? International Zoo News 39(1), 14-19.
Several years of experience with pair housing of previously single-caged adult rhesus macaques and venipuncture in the home cage of cooperative, non-resisting animals lead the author to conclude that rhesus macaques are not as aggressive...
Reinhardt, V. 1992. Environmental enhancement plan for previously single-caged adult rhesus macaques (Macaca mulatta). Anima
To promote the well-being of previously single-caged adult (older than 5 years) rhesus macaques (Macaca mulatta) and the quality of research done with them, the following environmental enhancement plan has been developed and implemented at...
Reinhardt, V. 1992. Improved handling of experimental rhesus monkeys. In: The Inevitable Bond. Examining Scientist-Animal Interactions. Davis, H., Balfour, A. D. (eds), 171-177. Cambridge University Press, Cambridge, UK.
The significant increase of serum cortisol concentration associated with involuntary manual or mechanical restraint during venipuncture was absent in females who were trained to voluntarily cooperate during the procedure in the homecage. The present findings...
Reinhardt, V. 1992. Space utilization by captive rhesus macaques. Animal Technology 43, 11-17.
The area covered by the floor was 3 times larger than that covered by elevated structures; nonetheless the animals were located significantly more often (89.8% of 108 scan samples) on elevated structures than on the...
Reinhardt, V. 1992. Transport-cage training of caged rhesus macaques. Animal Technology 43, 57-61.
A simple training protocol is described which ensures that [most] caged animals readily enter a transport cage.
Reinhardt, V. 1992. Voluntary progression order in captive rhesus macaques. Zoo Biology 11,(1) 61-66.
The sequence in which 14 laboratory rhesus macaques left their home enclosure during a routine catching procedure was recorded on 30 occasions during 6 weeks. The animals were trained to voluntarily exit one by one...